diff --git a/pyproject.toml b/pyproject.toml
index 60cdce0..00dc7b6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,7 +16,7 @@ dependencies = [
     "pymodaq_utils>=5.3.1",
     "pymodaq_gui>=5.3.0",
     "pymodaq_data>=5.3.0",
-    "pymodaq_plugins_daqmx",
+    "pymodaq_plugins_daqmx>=1.1,<5",
     "pymodaq_plugins_physik_instrumente",
     #todo: list here all dependencies your package may have
 ]